Method for establishing user authenication with composite session keys among cryptographically communicating nodes
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United States of America Patent
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Mar 10, 1987
Grant Date -
N/A
app pub date -
Apr 11, 1985
filing date -
Apr 11, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method for authenticating nodes/users and in protecting data flow between nodes. This is facilitated by creating a dialogue involving authenticated encryption among the nodes. During each session, a key for use in cryptographic conversion is constructed among the node participants in order to permit symmetric authentication. The key is unique to the session. A different key is generated for each and every session. The building of the session key involves sharing of a minimal amount of information among the participants in the form of combining both a random number and authentication indicia.
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